Bearded seal vs Bonnet hammerhead

Erignathus barbatus compared with Sphyrna tiburo

Key Differences

• Bearded seal is Not Evaluated while Bonnet hammerhead is Endangered.

Taxonomic Classification

Rank	Bearded seal	Bonnet hammerhead
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Pinnipedia (Seals & Sea Lions)	Carcharhiniformes (Ground Sharks)
Family	Phocidae (True Seals)	Sphyrnidae (Hammerhead Sharks)
Genus	Erignathus	Sphyrna (Hammerhead Sharks)
Species	Erignathus barbatus	Sphyrna tiburo

Evolutionary Relationship

Bearded seal and Bonnet hammerhead share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bearded seal

NE — Not Evaluated

Bonnet hammerhead

EN — Endangered

Physical Characteristics

Attribute	Bearded seal	Bonnet hammerhead
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bearded seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Norway and Sweden.

Bonnet hammerhead

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Bearded seal

The Bearded seal (Erignathus barbatus) is a species in the genus Erignathus. Typically found in diverse terrestrial and aquatic ecosystems.

Bonnet hammerhead

The Bonnet hammerhead (Sphyrna tiburo) is a species in the genus Sphyrna. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.